资源描述：
《2018-2019学年高中英语三维设计人教版浙江专版选修6：unit4sectionⅰwarmingup》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、开启快与Globalwarming温室效应，就是太阳短波辐射可以透过大气射入地面，而地面增暖后放出的长短辐射却被大P中的二氧化碳等物质所吸收，从而产生大气变暖的效应。Unit4ThegreenhouseeffectThegreenhouseeffectistheriseintemperaturethattheEarthexperiencesbecausecertaingasesintheatmosphere（丿€气;大气层）trapenergyfromthesun.Withoutthesegas
2、es,heatwouldescapebackintospaceandEarthfsaveragetemperaturewouldbeabout60°Fcolde匚Becauseofhowtheywarmourworld.thesegasesarereferredtoasgreenhousegases.,Haveyoueverseenagreenhouse?Mostgreenhouseslooklikeasmallglasshouse.Greenhousesareusedtogrowplants,
3、especiallyinthewinte匚Greenhousesworkbytrappingheatfromthesun.Theglasspanels（面，板）ofthegreenhouseletinlightbutkeepheatfromescaping.Thiscausesthegreenhousetoheatup,muchliketheinsideofacarparkedinsunlight,andkeepstheplantswarmenoughtoliveinthewinte匚,TheE
4、arth'satmosphereisallaroundus•三Itistheairthatwebreathe・Greenhousegasesintheatmospherebehavemuchliketheglasspanes（窗玻T离）inagreenhouse.SunlightenterstheEarth'satmosphere,passingthroughtheblanketofgreenhousegases・AsitreachestheEarthfssurface,landwater,an
5、dbiosphere（牛物圈）absorbthesunlightsenergy.Onceabsorbed,thisenergyissentbackintotheatmosphere・Someoftheenergypassesbackintospace,butmuchofitremainscausingourtrappedintheatmospherebythegreenhousegases,worldtoheatup.,Thegreenhouseeffectisimportant.Without
6、thegreenhouseeffect,theEarthwouldnotbewarmenoughforhumanstolive・Butifthegreenhouseeffectbecomesstronger,itcouldmaketheEarthwarmerthanusual.Evenalittleextrawarmingmaycauseproblemsforhumans,plants,andanimals.点点释疑——把课文读懂［原文呈现］~~THEEARTHISBECOMINGWARMER—
7、BUTDOESITMATTER?Duringthe20thcenturythetemperatureoftheearthroseaboutonedegreeFahrenheit1.Thatprobablydoesnotseemmuchtoyouorme,butitisarapidincreasewhencomparedto'othernaturalchangestSohowhasthiscomeabout1anddoesitmatter?EarthCaresSophie'Armstrong'ex
8、ploresthesequestions.Thereisnodoubtthattheearthisbecomingwarmer(seeGraph'1)andthatitishumanactivitythathascausedthisglobalwarmingratherthanarandombutnaturalphenomenon.［读文清障］①Fahrenheit/'faeranhalt/a/.华氏的".华氏温度计②comparedto与相比③whencomparedto…是“when+过去分
